Contract 0x1053219fD456DB18BfA32938c8D0b5935aae88f4 1

 
 
Txn Hash
Method
Block
From
To
Value
0x79fb5d7ab86223568d3da69fce9199f18b49bc33fe734c0521327be4c0eb64a7Safe Transfer Fr...161245452022-12-06 8:26:1122 hrs 55 mins ago0x522923a476a91d7aa863f125472f6f82edfb17e9 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00103302 14.49305254
0xefa76c4f26d8a167a2f0451d9d94e476625b1b753532363f6fc3dfc0b436c4d3Set Approval For...160952602022-12-02 6:14:235 days 1 hr ago0x4f6414199f04013be1408eb6d3e1df2713a66093 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00054469 11.8003733
0x5e4b034c49d5ada028a704271d21f9f0e966e3da67281aa3b344d33aad446deeSet Approval For...160816792022-11-30 8:41:596 days 22 hrs ago0xd5f5902901bbe4221c633a4a491a21ab7e4ac091 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00062955 13.6388263
0x47a72ab30fc02433274f4ec203d384806e978d674b6dfb9cc55cbd6498fe036aSet Approval For...160718742022-11-28 23:48:358 days 7 hrs ago0x68292357e9b0b35e08861ccdb53290bdb92999c5 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00051306 11.10065234
0x2e45342def6ca390f45ebc92f1b4da68830357e553be5bf8be77a77984caf055Set Approval For...160616662022-11-27 13:36:479 days 17 hrs ago0x375d173c9acac9e331f7f7080c0337bb0320cb25 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00053576 11.61294713
0x05ca83dc251649e2b6e45b8324672a878b98399aa3460575feb5f2f6a3ed5850Set Approval For...160552182022-11-26 16:01:1110 days 15 hrs ago0x321d0dbfc748161f4fbb9f137327a6bbb6ad8c69 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.0005966 12.93180539
0x508381286d43bef4f4c9ab59ed897d95aa19b8e1481eb9c13a25ffd0c63ff9faSet Approval For...160394772022-11-24 11:15:4712 days 20 hrs ago0x9c4fafb80e27b23179d1825dd68351bccbd0c2ba IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00062594 13.56761077
0xe8df5a0c817cbf647717d16b04659ca81201317fd047eda85e3a76bea1700cdbSet Approval For...160266732022-11-22 16:15:1114 days 15 hrs ago0xcc774355869d2e1dfa5e715c9bb2d65ef3b3b63c IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00080749 17.50278811
0xa23a6d3fe5f804f12a3ad1d04ed1c8a6509e85bf0bded88e1265076cb7c07168Safe Transfer Fr...160251732022-11-22 11:12:2314 days 20 hrs ago0x522923a476a91d7aa863f125472f6f82edfb17e9 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00090798 12.75239662
0x44284adb219d4c7838c8a85a1fa5276b2f9e6cbfe8eedad8d5b29ee23d2946e7Set Approval For...160122162022-11-20 15:47:3516 days 15 hrs ago0x0f95f85cb639afb022dcde751c1abcae16f381d1 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00058671 12.71730082
0x2e0d91cc268d116ac4d3f3bb16573d96392e68bb2468c64822984daf351fb9d0Set Approval For...159951732022-11-18 6:41:4719 days 40 mins ago0x6e513ada916670389097752d05bf609d1246b4d2 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00064955 14.07949208
0x86103ea86cf3a5cf657acda858ae6636fcc0c8524fac04b64b22960222c009ccSet Approval For...159898702022-11-17 12:53:5919 days 18 hrs ago0x522923a476a91d7aa863f125472f6f82edfb17e9 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00066735 14.4577514
0xf345dbadad339f28466662ab977ce37a1b995cbf6f5f944b2e0ee107ad8fe51bSet Approval For...159761032022-11-15 14:42:3521 days 16 hrs ago0x6614ae7355f855642be9340679b56c04031529f7 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00101955 22.08797673
0x3badda252b6cb4397e566281b9af4744b6bee698daa3c8838bc0ab07b18c0da1Set Approval For...159463802022-11-11 11:08:1125 days 20 hrs ago0xb17bc7ad0e0f73db0dfe60e508445c237832a369 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00073128 15.85093235
0x72d4a589337cfa326cfe85401693d3aa2e2fae59bba411edbe8be875c13adef8Transfer From159430622022-11-11 0:00:2326 days 7 hrs ago0x5bed8bc84c6eb3ed13fa0afec6e45ecca80b4d01 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00122512 17.89891702
0x39d7b90fb9b1b60c6d5fa541b13dd41b863abe20f770ea7059d7c00209954e22Safe Transfer Fr...159318072022-11-09 10:14:1127 days 21 hrs ago0x3e31a9e56710e19c59a781d78429346a3bc8a302 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00313884 58.00542292
0x92ee4a95f468bef0753e6fe5e7453465be58cbce9b0357b16b917e42a63655c0Safe Transfer Fr...159317822022-11-09 10:09:1127 days 21 hrs ago0x3e31a9e56710e19c59a781d78429346a3bc8a302 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00223858 41.36877002
0x06b9805eb24970c85d75f25a7a8690d61f5d3d0706fac91b35fe4e43579443d3Safe Transfer Fr...159317782022-11-09 10:08:2327 days 21 hrs ago0x3e31a9e56710e19c59a781d78429346a3bc8a302 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00233925 43.23858186
0xc6fb5ff9ad7df3e579c866b838ce6947cc2bf1fd4ca5c79ca5442863d43241caSafe Transfer Fr...159317722022-11-09 10:07:1127 days 21 hrs ago0x3e31a9e56710e19c59a781d78429346a3bc8a302 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.0011245 41.18167942
0x23f369e032cdaa05722d83ce18aca545a84b533ca512b428cd3c02adf063392bSafe Transfer Fr...159317712022-11-09 10:06:5927 days 21 hrs ago0x3e31a9e56710e19c59a781d78429346a3bc8a302 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00236831 43.76614162
0x65b107e41a35b3a1287fe9b0d8f9990eeebe927f14f16dc6f4a077c4b8df6c77Set Approval For...159310492022-11-09 7:40:5927 days 23 hrs ago0x689122f1d7752e83f0c03fcd2fd60c77194b6288 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00089881 19.48225427
0xef8dde98dd5583f669a6e3a520e73f3d34f06a1f68225ba37f4647cba5e026baSet Approval For...159222502022-11-08 2:13:1129 days 5 hrs ago0x4237d59d808fa5bbaaed93d105978aefc63efd39 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00061289 13.28478488
0x181e689461a8a50a3b09046fdd5d51c41125874dd7393555e7dcf1f192061cf4Set Approval For...158948092022-11-04 6:18:2333 days 1 hr ago0x80718ebf117665a814595af848317d91c6a68618 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00039145 16.16061803
0xb21baf05a1fc4b5707babd747d203dbb0ac7e72c2f5c1b06d0506560c3da9f89Set Approval For...158918742022-11-03 20:28:3533 days 10 hrs agoENS Name mshelly.eth IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00097331 21.08614639
0x8296745a9d578b407c36494f364a57663574fb66527619ebacc38ddcb8213c17Set Approval For...158803562022-11-02 5:49:4735 days 1 hr ago0x68292357e9b0b35e08861ccdb53290bdb92999c5 IN  0x1053219fd456db18bfa32938c8d0b5935aae88f40 Ether0.00047832 10.36257964
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0xa222420411ebb6fa84ba74d23971f99c46393ba33b603cab46fa85a1da957ba7158444082022-10-28 5:16:3540 days 2 hrs ago 0x1053219fd456db18bfa32938c8d0b5935aae88f40x0d777ba1f2edf7f5d16eb4378c01dc4a054f406d3.9 Ether
0xddef2f6b1da13ce619f238970c5bd8017876dbd39abb2642dda5b37490e5ab4d155861402022-09-22 3:15:2376 days 4 hrs ago 0x1053219fd456db18bfa32938c8d0b5935aae88f40x0d777ba1f2edf7f5d16eb4378c01dc4a054f406d143.73 Ether
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Contract Source Code Verified (Exact Match)

Contract Name:
ERC721AWNC

Compiler Version
v0.8.9+commit.e5eed63a

Optimization Enabled:
Yes with 1000 runs

Other Settings:
default evmVersion
File 1 of 12 : ERC721AWNC.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs
// modified: robbie oh ([email protected])

pragma solidity ^0.8.9;

import './ERC721A.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import {MerkleProof} from '@openzeppelin/contracts/utils/cryptography/MerkleProof.sol';

contract ERC721AWNC is ERC721A, Ownable {
    uint256 internal constant MAX_SUPPLY = 10_203;
    uint256 internal constant MIGRATION_AMOUNT = 884;
    uint256 internal constant PARTNERS_CAP = 2_000;
    uint256 internal constant BASE_PRICE = 0.09 ether;

    uint256 public privatePrice = BASE_PRICE;
    uint256 public publicPrice = BASE_PRICE;
    uint256 public maxPrivateAmountPerAddress = 5;
    uint256 public maxPublicAmountPerTransaction = 100;

    uint256 public partnersMintedAmount;

    uint256 public publicMintedAmount;
    uint256 public maxPublicSaleSupply;

    bytes32 private _merkleRootWhitelist;

    bool internal _isLocked = false; // TODO discuss if making it public

    bool public isMigrated = false;
    bool public isPrivateSaleOpened = false;
    bool public isPublicSaleOpened = false;

    uint32 public currentPrivateRound = 0;

    string internal _currentBaseURL = 'https://storage.googleapis.com/weirdnomadclub/metadata/';

    mapping(uint256 => string) public ipfsURI;

    event MigrationMinted(address migrationWalletAddress, uint256 baseTokenId, uint256 amount);
    event PartnersMinted(address partnersWalletAddress, uint256 amount);

    event PrivateMinted(address minter, uint256 amount);
    event PublicMinted(address minter, uint256 amount);
    event MerkleRootWhitelistChanged(bytes32 newMerkleRoot);

    event PrivateSaleOpened();
    event PrivateSaleClosed();
    event PublicSaleOpened();
    event PublicSaleClosed();

    event IPFSURLSet(uint256 tokenId, string uri);

    constructor() Ownable() ERC721A('Weird Nomad Club Genesis', 'WNCG') {}

    modifier afterMigrated() {
        require(isMigrated, 'NFT: not migrated yet');
        _;
    }

    modifier onPrivateSale() {
        require(isPrivateSaleOpened, 'NFT: not opened private sale');
        _;
    }

    modifier onPublicSale() {
        require(isPublicSaleOpened, 'NFT: not opened public sale');
        _;
    }

    modifier limitSupply(uint256 _amount) {
        require((totalSupply() + _amount) <= MAX_SUPPLY, 'NFT: exceeded total supply');
        _;
    }

    modifier notContractCall() {
        require(tx.origin == msg.sender, 'NFT: not allowed contract call');
        _;
    }

    function mintPrivate(uint256 _amount, bytes32[] calldata _merkleProof)
        external
        payable
        onPrivateSale
        limitSupply(_amount)
    {
        require(msg.value == _amount * privatePrice, 'NFT: not paid exact price');
        require(isWhitelist(msg.sender, _merkleProof), 'NFT: not whitelisted');

        if (currentPrivateRound != _getPrivateRound(msg.sender)) {
            _setPrivateRound(msg.sender, currentPrivateRound);
        }

        require(
            (_getPrivateAmount(msg.sender) + _amount) <= maxPrivateAmountPerAddress,
            'NFT: exceeded private amount per address'
        );

        _incPrivateAmount(msg.sender, uint32(_amount));
        _safeMint(msg.sender, _amount);

        emit PrivateMinted(msg.sender, _amount);
    }

    function _getPrivateRound(address owner) internal view returns (uint32) {
        return uint32((_getAux(owner) >> 32) & 0xffffffff);
    }

    function _getPrivateAmount(address owner) internal view returns (uint32) {
        return uint32(_getAux(owner) & 0xffffffff);
    }

    function _setPrivateRound(address owner, uint32 round) internal {
        // NOTE set `round` and also reset amount to 0
        _setAux(owner, uint64(round) << 32);
    }

    function _incPrivateAmount(address owner, uint32 amount) internal {
        _setAux(owner, (_getAux(owner) & 0xffffffff00000000) | (_getPrivateAmount(owner) + amount));
    }

    function mintPublic(uint256 _amount) external payable onPublicSale limitSupply(_amount) notContractCall {
        require(msg.value == _amount * publicPrice, 'NFT: not paid exact price');
        require(_amount <= maxPublicAmountPerTransaction, 'NFT: exceeded public amount per transaction');
        require(
            maxPublicSaleSupply == 0 || publicMintedAmount + _amount <= maxPublicSaleSupply,
            "NFT: exceeded public sale's supply"
        );

        _safeMint(msg.sender, _amount);
        publicMintedAmount += _amount;

        emit PublicMinted(msg.sender, _amount);
    }

    // admin
    function mintMigration(
        address _migrationWalletAddress,
        uint256 _baseTokenId,
        uint256 _amount
    ) external onlyOwner {
        require(!isMigrated, 'NFT: already migrated');
        require(_currentIndex == _baseTokenId, 'NFT: invalid baseTokenId');
        require(totalSupply() + _amount <= MIGRATION_AMOUNT, 'NFT: exceeded migration amount');

        _safeMint(_migrationWalletAddress, _amount);

        isMigrated = totalSupply() == MIGRATION_AMOUNT;

        emit MigrationMinted(_migrationWalletAddress, _baseTokenId, _amount);
    }

    function mintPartners(address _partnersWalletAddress, uint256 _amount)
        external
        onlyOwner
        afterMigrated
        limitSupply(_amount)
    {
        require(partnersMintedAmount + _amount <= PARTNERS_CAP, 'NFT: exceeded partners capacity');

        _safeMint(_partnersWalletAddress, _amount);
        partnersMintedAmount += _amount;

        emit PartnersMinted(_partnersWalletAddress, _amount);
    }

    function setMerkleRootWhitelist(bytes32 _newMerkleRootWhitelist) external onlyOwner {
        _merkleRootWhitelist = _newMerkleRootWhitelist;

        emit MerkleRootWhitelistChanged(_newMerkleRootWhitelist);
    }

    function openPrivateSale(uint256 _price, uint256 _maxAmountPerAddress) external onlyOwner afterMigrated {
        require(totalSupply() < MAX_SUPPLY, 'NFT: fully minted total supply');
        require(!isPrivateSaleOpened, 'NFT: already opened private sale');
        require(_price >= BASE_PRICE, 'NFT: lower price than the base price');

        isPrivateSaleOpened = true;
        currentPrivateRound++;
        privatePrice = _price;
        maxPrivateAmountPerAddress = _maxAmountPerAddress;

        emit PrivateSaleOpened();
    }

    function reopenPrivateSale() external onlyOwner afterMigrated {
        require(totalSupply() < MAX_SUPPLY, 'NFT: fully minted total supply');
        require(!isPrivateSaleOpened, 'NFT: already opened private sale');
        require(currentPrivateRound != 0, 'NFT: not found the previous private sale');

        isPrivateSaleOpened = true;

        emit PrivateSaleOpened();
    }

    function closePrivateSale() external onlyOwner {
        require(isPrivateSaleOpened, 'NFT: already closed private sale');

        isPrivateSaleOpened = false;

        emit PrivateSaleClosed();
    }

    // NOTE if `_maxSaleAmount` is `0`, it means `unlmited`.
    function openPublicSale(
        uint256 _price,
        uint256 _maxAmountPerTransaction,
        uint256 _maxSaleSupply
    ) external onlyOwner afterMigrated {
        require(totalSupply() < MAX_SUPPLY, 'NFT: fully minted total supply');
        require(!isPublicSaleOpened, 'NFT: already opened public sale');
        require(_price >= BASE_PRICE, 'NFT: lower price than the base price');

        isPublicSaleOpened = true;
        publicPrice = _price;
        maxPublicAmountPerTransaction = _maxAmountPerTransaction;
        maxPublicSaleSupply = _maxSaleSupply;

        emit PublicSaleOpened();
    }

    function reopenPublicSale() external onlyOwner afterMigrated {
        require(totalSupply() < MAX_SUPPLY, 'NFT: fully minted total supply');
        require(!isPublicSaleOpened, 'NFT: already opened public sale');

        isPublicSaleOpened = true;

        emit PublicSaleOpened();
    }

    function closePublicSale() external onlyOwner {
        require(isPublicSaleOpened, 'NFT: already closed public sale');

        isPublicSaleOpened = false;

        emit PublicSaleClosed();
    }

    function sendEthers(address _to) external onlyOwner {
        payable(_to).transfer(address(this).balance);
    }

    function setBaseURL(string calldata _newBaseURL) external onlyOwner {
        _currentBaseURL = _newBaseURL;
    }

    function setIpfsURI(uint256 tokenId, string calldata uri) public onlyOwner {
        ipfsURI[tokenId] = uri;
        emit IPFSURLSet(tokenId, uri);
    }

    struct TokenUrl {
        uint256 tokenId;
        string uri;
    }

    function setIpfsURIBatch(TokenUrl[] calldata urls) external onlyOwner {
        for (uint256 i = 0; i < urls.length; i++) {
            setIpfsURI(urls[i].tokenId, urls[i].uri);
        }
    }

    function setLocked(bool _locked) external onlyOwner {
        require(_isLocked != _locked, 'NFT: same locked status');
        _isLocked = _locked;
    }

    /*
    function transferOwnership(address newOwner) public {
    }
    */

    // view
    function isWhitelist(address _address, bytes32[] calldata _merkleProof) public view returns (bool) {
        bytes32 node = keccak256(abi.encodePacked(_address));
        return MerkleProof.verify(_merkleProof, _merkleRootWhitelist, node);
    }

    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (bytes(ipfsURI[tokenId]).length == 0) {
            return _tokenURI(tokenId);
        }
        return ipfsURI[tokenId];
    }

    // internal
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal override {
        require(!_isLocked, 'NFT: locked token transfer');
        super._beforeTokenTransfers(from, to, startTokenId, quantity);
    }

    function _baseURI() internal view virtual override returns (string memory) {
        return _currentBaseURL;
    }

    fallback() external payable {
        revert();
    }

    receive() external payable {
        revert();
    }
}

File 2 of 12 : ERC721A.sol
// SPDX-License-Identifier: MIT
// Creator: Chiru Labs

pragma solidity ^0.8.9;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

error ApprovalCallerNotOwnerNorApproved();
error ApprovalQueryForNonexistentToken();
error ApproveToCaller();
error ApprovalToCurrentOwner();
error BalanceQueryForZeroAddress();
error MintToZeroAddress();
error MintZeroQuantity();
error OwnerQueryForNonexistentToken();
error TransferCallerNotOwnerNorApproved();
error TransferFromIncorrectOwner();
error TransferToNonERC721ReceiverImplementer();
error TransferToZeroAddress();
error URIQueryForNonexistentToken();

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
abstract contract ERC721A is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
        // For miscellaneous variable(s) pertaining to the address
        // (e.g. number of whitelist mint slots used).
        // If there are multiple variables, please pack them into a uint64.
        uint64 aux;
    }

    // The tokenId of the next token to be minted.
    uint256 internal _currentIndex;

    // The number of tokens burned.
    uint256 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex - _startTokenId() times
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to _startTokenId()
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberMinted);
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return _addressData[owner].aux;
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        _addressData[owner].aux = aux;
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr && curr < _currentIndex) {
                TokenOwnership memory ownership = _ownerships[curr];
                if (!ownership.burned) {
                    if (ownership.addr != address(0)) {
                        return ownership;
                    }
                    // Invariant:
                    // There will always be an ownership that has an address and is not burned
                    // before an ownership that does not have an address and is not burned.
                    // Hence, curr will not underflow.
                    while (true) {
                        curr--;
                        ownership = _ownerships[curr];
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                    }
                }
            }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return _ownershipOf(tokenId).addr;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner && !isApprovedForAll(owner, _msgSender())) {
            revert ApprovalCallerNotOwnerNorApproved();
        }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        if (operator == _msgSender()) revert ApproveToCaller();

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.isContract() && !_checkContractOnERC721Received(from, to, tokenId, _data)) {
            revert TransferToNonERC721ReceiverImplementer();
        }
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function _tokenURI(uint256 tokenId) internal view virtual returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

        string memory baseURI = _baseURI();
        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        return _startTokenId() <= tokenId && tokenId < _currentIndex && !_ownerships[tokenId].burned;
    }

    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, '');
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        _mint(to, quantity, _data, true);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(
        address to,
        uint256 quantity,
        bytes memory _data,
        bool safe
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (safe && to.isContract()) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex != end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex != end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSender() == from ||
            isApprovedForAll(from, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, from);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = to;
            currSlot.startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev This is equivalent to _burn(tokenId, false)
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        address from = prevOwnership.addr;

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSender() == from ||
                isApprovedForAll(from, _msgSender()) ||
                getApproved(tokenId) == _msgSender());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId, from);

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            AddressData storage addressData = _addressData[from];
            addressData.balance -= 1;
            addressData.numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = from;
            currSlot.startTimestamp = uint64(block.timestamp);
            currSlot.burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(
        address to,
        uint256 tokenId,
        address owner
    ) private {
        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
            return retval == IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

File 3 of 12 : Ownable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

File 4 of 12 : MerkleProof.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merklee tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            bytes32 proofElement = proof[i];
            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
            }
        }
        return computedHash;
    }
}

File 5 of 12 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

File 6 of 12 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

File 7 of 12 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 8 of 12 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 9 of 12 : Context.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

File 10 of 12 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 11 of 12 : ERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

File 12 of 12 : IERC165.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "evmVersion": "london",
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"string","name":"uri","type":"string"}],"name":"IPFSURLSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"newMerkleRoot","type":"bytes32"}],"name":"MerkleRootWhitelistChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"migrationWalletAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"baseTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"MigrationMinted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"partnersWalletAddress","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PartnersMinted","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PrivateMinted","type":"event"},{"anonymous":false,"inputs":[],"name":"PrivateSaleClosed","type":"event"},{"anonymous":false,"inputs":[],"name":"PrivateSaleOpened","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"minter","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PublicMinted","type":"event"},{"anonymous":false,"inputs":[],"name":"PublicSaleClosed","type":"event"},{"anonymous":false,"inputs":[],"name":"PublicSaleOpened","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"closePrivateSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"closePublicSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"currentPrivateRound","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"ipfsURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isMigrated","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPrivateSaleOpened","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPublicSaleOpened","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"},{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"}],"name":"isWhitelist","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPrivateAmountPerAddress","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPublicAmountPerTransaction","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPublicSaleSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_migrationWalletAddress","type":"address"},{"internalType":"uint256","name":"_baseTokenId","type":"uint256"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mintMigration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_partnersWalletAddress","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mintPartners","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"bytes32[]","name":"_merkleProof","type":"bytes32[]"}],"name":"mintPrivate","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"mintPublic","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"},{"internalType":"uint256","name":"_maxAmountPerAddress","type":"uint256"}],"name":"openPrivateSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_price","type":"uint256"},{"internalType":"uint256","name":"_maxAmountPerTransaction","type":"uint256"},{"internalType":"uint256","name":"_maxSaleSupply","type":"uint256"}],"name":"openPublicSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"partnersMintedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"privatePrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicMintedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reopenPrivateSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"reopenPublicSale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"}],"name":"sendEthers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_newBaseURL","type":"string"}],"name":"setBaseURL","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"uri","type":"string"}],"name":"setIpfsURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"string","name":"uri","type":"string"}],"internalType":"struct ERC721AWNC.TokenUrl[]","name":"urls","type":"tuple[]"}],"name":"setIpfsURIBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_locked","type":"bool"}],"name":"setLocked","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_newMerkleRootWhitelist","type":"bytes32"}],"name":"setMerkleRootWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.